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Last updated: 9 Jun 2025

Architecture overview of GOV.UK applications

Diagram of technical architecture of GOV.UK

You can open the diagram below in Full Screen Mode if you’d prefer.

To edit the diagram, visit https://app.diagrams.net/#G1qTEpv2kCzghqZpUF86UyQj4o0dZ97gTm. If you see an “Error loading file” popup, click the “Try opening via this page” button and then use the “Open with” dropdown (at the top of the screen) to select “Open with draw.io”.

Diagram of GOV.UK’s publishing architecture

A more recent architecture diagram, created for the publishing teams, is available at https://app.mural.co/t/govukdelivery7534/m/govukdelivery7534/1732703920854/dbbca4b19d526e8e791c0b1e3972fe0ddb8cb28e.

Other resources

You can sign up for a Introduction to GOV.UK Architecture session or watch a recording of a past session.

You can also read the architectural deep-dive in the Developer Docs, or have a look at in the GOV.UK architecture folder for other resources.